update asserts

examples/get_started/lv_example_get_started_3.c

@@ -0,0 +1,31 @@
+//#include "../../lv_examples.h"
+//
+//static lv_obj_t * label;
+//
+//static void slider_event_cb(lv_obj_t * slider, lv_event_t event)
+//{
+//    if(event == LV_EVENT_VALUE_CHANGED) {
+//        /*Refresh the text*/
+//        lv_label_set_text_fmt(label, "%d", lv_slider_get_value(slider));
+//        lv_obj_align(label, slider, LV_ALIGN_OUT_BOTTOM_MID, 0, 20);    /*Align below the slider*/
+//    }
+//}
+//
+///**
+// * Create a slider and write its value on a label.
+// */
+//void lv_example_get_started_3(void)
+//{
+//    /* Create a slider in the center of the display */
+//    lv_obj_t * slider = lv_slider_create(lv_scr_act(), NULL);
+//    lv_obj_set_width(slider, 200);                        /*Set the width*/
+//    lv_obj_align(slider, NULL, LV_ALIGN_CENTER, 0, 0);    /*Align to the center of the parent (screen)*/
+//    lv_obj_set_event_cb(slider, slider_event_cb);         /*Assign an event function*/
+//
+//    /* Create a label below the slider */
+//    label = lv_label_create(lv_scr_act(), NULL);
+//    lv_label_set_text(label, "0");
+//    lv_obj_align(label, slider, LV_ALIGN_OUT_BOTTOM_MID, 0, 20);    /*Align below the slider*/
+//}
+//
+//